lm5034mtcx National Semiconductor Corporation, lm5034mtcx Datasheet - Page 19

• Manufacturer Part Number: lm5034mtcx
• Description: High Voltage Dual Interleaved Current Mode Controller With Active Clamp
• Manufacturer: National Semiconductor Corporation

Driver Outputs
Thermal Shutdown
The LM5034 should be operated so the junction temperature
does not exceed 125˚C. If a junction temperature transient
reaches 165˚C (typical), the Thermal Shutdown circuit acti-
vates the V
The V
CC
regulator and the four output drivers are disabled,
CC
Disable and Drivers Off lines (see Figure 18).
(Continued)
FIGURE 22. Compound Gate Driver
FIGURE 23. Output Overlap Timing
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the SS1, SS2, and RES pins are grounded, and the soft-start
current is set to 50 µA. This puts the LM5034 in a low power
state helping to prevent catastrophic failures from accidental
device overheating. When the junction temperature reduces
below 145˚C (typical hysteresis = 20˚C), the V
enabled and a startup sequence is initiated (Figure 3).
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CC
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regulator is